data_global
_chemical_name_mineral 'Ixiolite-(Mn2+)'
loop_
_publ_author_name
'Grice J D'
'Ferguson R B'
'Hawthorne F C'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 14 
_journal_year 1976
_journal_page_first 540
_journal_page_last 549
_publ_section_title
;
 The crystal structures of tantalite, ixiolite and wodginite
 from Bernic lake, Manitoba I. Tantalite and ixiolite
;
_database_code_amcsd 0005132
_chemical_compound_source 'Bernic Lake, Manitoba, Canada'
_chemical_formula_sum 'Ta.42 Mn.3 Nb.24 Ti.02 Sn.005 Fe.002 O2'
_cell_length_a 4.785
_cell_length_b 5.758
_cell_length_c 5.160
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 142.168
_exptl_crystal_density_diffrn      6.935
_symmetry_space_group_name_H-M 'P b c n'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,z'
  '1/2+x,1/2-y,-z'
  '1/2+x,1/2+y,1/2-z'
  '1/2-x,1/2-y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Ta   0.00000   0.33170   0.25000   0.42000 ?
Mn   0.00000   0.33170   0.25000   0.30000 ?
Nb   0.00000   0.33170   0.25000   0.24000 ?
Ti   0.00000   0.33170   0.25000   0.02000 ?
Sn   0.00000   0.33170   0.25000   0.00500 ?
Fe   0.00000   0.33170   0.25000   0.00200 ?
O   0.72240   0.12170   0.41580   1.00000   0.03546
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Ta 0.06148 0.01008 0.00175 0.00000 -0.00375 0.00000
Mn 0.06148 0.01008 0.00175 0.00000 -0.00375 0.00000
Nb 0.06148 0.01008 0.00175 0.00000 -0.00375 0.00000
Ti 0.06148 0.01008 0.00175 0.00000 -0.00375 0.00000
Sn 0.06148 0.01008 0.00175 0.00000 -0.00375 0.00000
Fe 0.06148 0.01008 0.00175 0.00000 -0.00375 0.00000